Home / 13,572,188.85-18,729,753.59-7,377,231.71

Finding the Fourth Proportional to 13,572,188.85, 18,729,753.59 and 7,377,231.71

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Solution

The fourth proportional to 13,572,188.85, 18,729,753.59 and 7,377,231.71 is: 10,180,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572,188.85 : 18,729,753.59 = 7,377,231.71 : x
  2. Step 2: Convert to fraction form
    13,572,188.85/18,729,753.59 = 7,377,231.71/x
  3. Step 3: Cross multiply
    13,572,188.85x = 18,729,753.59 × 7,377,231.71
  4. Step 4: Simplify right side
    13,572,188.85x = 138,173,731,974,099.42
  5. Step 5: Solve for x
    x = 138,173,731,974,099.42/13,572,188.85
  6. Step 6: Final answer
    x = 10,180,652.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.